<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      body {
        height: 100vh;
        width: 100vw;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: #212121;
      }

      /* === removing default button style ===*/
      .button {
        margin: 0;
        height: auto;
        background: transparent;
        padding: 0;
        border: none;
        cursor: pointer;
      }

      /* button styling */
      .button {
        --border-right: 6px;
        --text-stroke-color: rgba(255, 255, 255, 0.6);
        --animation-color: #37ff8b;
        --fs-size: 2em;
        
        letter-spacing: 3px;
        text-decoration: none;
        font-size: var(--fs-size);
        font-family: "Arial";
        position: relative;
        text-transform: uppercase;
        color: transparent;
        -webkit-text-stroke: 1px var(--text-stroke-color);
      }
      /* this is the text, when you hover on button */
      .hover-text {
        position: absolute;
        box-sizing: border-box;
        content: attr(data-text);
        color: var(--animation-color);
        width: 0%;
        inset: 0;
        border-right: var(--border-right) solid var(--animation-color);
        overflow: hidden;
        transition: 0.5s;
        -webkit-text-stroke: 1px var(--animation-color);
      }
      /* hover */
      .button:hover .hover-text {
        width: 100%;
        filter: drop-shadow(0 0 23px var(--animation-color));
      }
    </style>
  </head>
  <body>
    <button class="button" data-text="Awesome">
      <span class="actual-text">&nbsp;uiverse&nbsp;</span>
      <span aria-hidden="true" class="hover-text">&nbsp;uiverse&nbsp;</span>
    </button>
  </body>
</html>
